svg {
  border: 1px solid #000;
}

.layout-wrapper {
  display: flex;
  margin: 20px 10px;
  padding: 10px;
  border: 1px solid #000;
  width: 1000px;
  position: relative;
}

.layout-item {
  flex: 1;
  border: 1px solid #000;
  height: 100%;
  padding: 10px;
  margin: auto 10px;
}

.tip {
  padding: 10px;
  position: absolute;
  display: none;
  border: 1px solid #000;
  border-radius: 5px;
  background: rgba(0, 0, 0, 0.8);
  color: #fff;
}